Depends on how they rate the game, though I'm guessing they will go for the same rating as D:OS which is fine. Larian gears their games for the more family friendly environment. (But Dwarfs still cuss)

Alternatively, they could do a "Firefly" and do made up cuss words and use them where appropriate in dialog to emphasize a Dwarf's frustration or an Elf's shock at a situation.

Slightly off topic however, the PC world does get a bit tiresome. I don't cuss much myself, but I never cared to live in a completely sterile environment either. As an adult I feel like I'm still treated as a child. Some days I just feel like saying "oh, what the hell" and walk out the door in a diaper.

I pledged and all I got was this lousy awesome game!